Sorry for the multipix people... Im uploading from underneath ReeRee on my phone and this app is acting funky...

As far as your stock jack not working, it should work just fine if used under the axle, only thing there that would compromise the jack would be a large enough tire that would lift the axle further from the ground. Just food for thought.

All looks good to me
I've done shocks without a jack, little harder to get to the bolts but not to bad. And as far as a larger jack you could go the cheap route and find a good sturdy chunk of wood or two to put under it.

As you can see I do that allot

Just food for thought, I did my 5100s with the ebrake set on level ground no jacks tires on the ground. Takes some effort to compress the shocks more but definitely not impossible

Went ripping through a puddle that I frequent. I was getting out of my car (in the puddle) so I was concentrating on not soaking my shoes and as turn around to take a picture there is a cop parked right behind me...

But, I knew I was doing nothing illegal. Turns out he just pulled over to take a phone call. Even smiled and waved at me when I left. Haha.